Pregnancy Calculator

Due date, gestational age, and trimester tracker

Standard is 28 days; affects due date only for LMP method.

Estimated Due Date

Current Pregnancy Progress

⚠️ This is an estimate. Consult your healthcare provider for precise medical advice. Pregnancy lasts ~280 days (40 weeks) from LMP.

How to use

  • Select calculation basis: Last Menstrual Period (LMP) or Conception Date.
  • Enter the date and your average cycle length (if using LMP).
  • Click "Calculate" to see due date, current gestational age (weeks + days), trimester, and days remaining.
  • Track your pregnancy progress with the visual bar.

All calculations are local – no data leaves your device.